UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062929
Receipt number R000072052
Scientific Title Effects of Visual, Auditory, and Tactile Stimuli from an Intimate Female Partner on Pain Sensitivity
Date of disclosure of the study information 2026/09/16
Last modified on 2026/09/15 13:55:16

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Basic information

Public title

Effects of Visual, Auditory, and Tactile Stimuli from an Intimate Female Partner on Pain Sensitivity

Acronym

Effects of Visual, Auditory, and Tactile Stimuli from an Intimate Female Partner on Pain Sensitivity

Scientific Title

Effects of Visual, Auditory, and Tactile Stimuli from an Intimate Female Partner on Pain Sensitivity

Scientific Title:Acronym

Effects of Visual, Auditory, and Tactile Stimuli from an Intimate Female Partner on Pain Sensitivity

Region

Japan


Condition

Condition

None

Classification by specialty

Nursing Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The purpose of this study is to examine the effects of an intimate female partner's presence and involvement, including visual, auditory, and tactile stimuli, on pain sensitivity among healthy Japanese adult men who have been in a relationship with their partner for at least three months.

Basic objectives2

Others

Basic objectives -Others

This study examines the effects of a partner's presence and involvement on pain sensitivity among healthy Japanese adult men who have had a partner for at least three months.

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Pain Intensity Using a Visual Analog Scale

Key secondary outcomes

Emotional Assessment Using the POMS-II Short Form
Japanese Version of Experiences in Close Relationships
Salivary Chromogranin A


Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Individual

Blinding

Single blind -participants are blinded

Control

No treatment

Stratification

NO

Dynamic allocation

NO

Institution consideration


Blocking

NO

Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Other

Interventions/Control_1

Partner is present.

Interventions/Control_2

Partner is not present.

Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <=

Age-upper limit

29 years-old >=

Gender

Male

Key inclusion criteria

1) Individuals who have fully understood the nature of the study and have provided both verbal and written informed consent
2) Healthy Japanese adult males aged 18 to 29 years on the day of the study
3) Individuals with no current pain
4) Non smokers
5) Individuals who are obtaining sufficient sleep
6) Individuals who have not engaged in more than 4 hours of exercise on either the day preceding the study or the day before that
7) Individuals with no history or current presence of conditions such as autonomic nervous system disorders, cardiovascular disease, central or peripheral nervous system disorders, or conditions involving sensory or dermatological abnormalities
8) Individuals who have not undergone any form of pharmacological treatment-including oral medication, transdermal patches, or injections such as analgesics or agents affecting the central nervous system, within the three days prior to the start of the study
9) Individuals who, at the time of enrollment, have a partner with whom they have been in a relationship for at least three months

Key exclusion criteria

1) Individuals with findings that can be judged to be clearly abnormal immediately prior to or during the study
2) Individuals whom the principal investigator determines are unable to maintain a stable mental state or are at risk of becoming unstable
3) Individuals with trauma, skin abnormalities, physical abnormalities, or other conditions at the time of the study
4) Individuals currently taking any analgesics or medications that affect the central nervous system
5) Any other individuals deemed to present difficulties in conducting this study or for whom there is a risk of such difficulties

Target sample size

20


Research contact person

Name of lead principal investigator

1st name Takahiro
Middle name
Last name Kakeda

Organization

Kawasaki City College of Nursing

Division name

Faculty of Nursing

Zip code

212-0054

Address

4-30-1 Ogura, Saiwai-ward, Kawasaki, Kanagawa 212-0054 Japan

TEL

044-587-3520

Email

kakeda-t@kawasaki-cn.ac.jp


Public contact

Name of contact person

1st name Takahiro
Middle name
Last name Kakeda

Organization

Kawasaki City College of Nursing

Division name

Faculty of Nursing

Zip code

212-0054

Address

4-30-1 Ogura, Saiwai-ward, Kawasaki, Kanagawa, Japan

TEL

+81-44-587-3520

Homepage URL


Email

kakeda-t@kawasaki-cn.ac.jp


Sponsor or person

Institute

Kawasaki City College of Nursing

Institute

Department

Personal name

Riku Yokoyama


Funding Source

Organization

Ministry of Education, Culture, Sports, Science and Technology in Japan

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Research Ethics Committee in Kawasaki City College of Nursing

Address

4-30-1 Ogura, Saiwai-ward, Kawasaki, Kanagawa, Japan

Tel

+81-44-587-3500

Email

ethics@kawasaki-cn.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2026 Year 09 Month 16 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Open public recruiting

Date of protocol fixation

2026 Year 06 Month 17 Day

Date of IRB

2026 Year 08 Month 14 Day

Anticipated trial start date

2026 Year 09 Month 15 Day

Last follow-up date

2027 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2026 Year 09 Month 15 Day

Last modified on

2026 Year 09 Month 15 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000072052